It's just a bit farther than the Tetons, but the Buffalo Bill Museum in Cody WY is a 'must see' if you're into history of the West. Five superb museums, more than a full day's worth of genuine history.
The Buffalo Bill Museum examines both the personal and public lives of W.F. "Buffalo Bill" Cody, and seeks to interpret his story in the context of the history and myth of the American West.
The Whitney Gallery of Western Art presents an outstanding collection of masterworks of the American West. Original paintings, sculptures and prints trace artistic interpretations of the West from the early 19th century to today.
The Plains Indian Museum features one of the country's largest and finest collections of Plains Indian art and artifacts. Explore the cultural histories, artistry and living traditions of Plains Indian peoples, including the Arapaho, Crow, Cheyenne, Kiowa, Comanche, Blackfeet, Sioux, Gros Ventre, Shoshone and Pawnee.
The Cody Firearms Museum contains the world's most comprehensive assemblage of American arms, as well as European arms dating to the 16th century.
The Draper Museum of Natural History integrates the humanities with natural sciences to interpret the Greater Yellowstone Ecosystem and adjacent intermountain basins.
Oh, yes - the drive from Jackson Hole along the Wind River range to Cody is another big plus!